shithub: riscv

Download patch

ref: c4153b7755e3a4f3cab57ad8cbe85d18cc7cbd77
parent: 24b908be8a3edb75a63683eb5008aba3c9a1bb52
author: cinap_lenrek <cinap_lenrek@gmx.de>
date: Sun May 26 21:09:34 EDT 2013

kernel: closechanq error

catch potential interrupt error from kproc(). this can happen when
we run out of processes, then newproc() will call rsrcwait()
which does tsleep(). if the process gets a note, this might
raise a interrupt error.

--- a/sys/src/9/port/chan.c

+++ b/sys/src/9/port/chan.c

@@ -536,7 +536,10 @@

 	if(up != 0 && palloc.Lock.p != up && canqlock(&clunkq.q)){

 		c = up->dot;

 		up->dot = nil;

-		kproc("closeproc", closeproc, nil);

+		if(!waserror()){

+			kproc("closeproc", closeproc, nil);

+			poperror();

+		}

 		up->dot = c;

 	}else

 		wakeup(&clunkq.r);

-- 

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